#### If the mass of the Sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following is not correct ? Option 1) Time period of a simple pendulum on the Earth would decrease. Option 2) Walking on the ground would become more difficult. Option 3)  Raindrops will fall faster. Option 4)  'g' on the Earth will not change.

As we have learned

Acceleration due to gravity (g) -

Force extended by earth on a body is gravity.

Formula:

gravity

density of earth

- wherein

It's average value is on the surface of earth

For earth

rain drop will fall faster walking on the ground become more difficult

Time period of  simple pendulum will decrease

Option 1)

Time period of a simple pendulum on the Earth would decrease.

This is incorrect

Option 2)

Walking on the ground would become more difficult.

This is incorrect

Option 3)

Raindrops will fall faster.

This is incorrect

Option 4)

'g' on the Earth will not change.

This is correct